These wheels are made made Kryptonics. One of the most popular and best wheel manufacturers around. 100mm for QuadLines, scooters and inline speed skates sold in replacement sets of 2. Great for replacement Razor scooter wheels. Price is for two wheel units, 10mm upgrade! 2 wheel, 4 bearings and 2 bearing spacers Perfect replacement set up for tricking out your scooter and going really fast! Works with all types of scooters including Razor etc. Great value with quality abec 5 bearings. Includes tools.

Bought these to replace my sons Viper Scooter wheels, and they are much better than the factory installed wheels.
They ride fast and smooth on Blacktop, and with all you need in the kit, the price is just right.
My son loves these new wheels.